Yamaha 5EA-11631-11-A0 - Piston (Std) is a genuine Yamaha part. It is an internal engine component built to Yamaha's specification. Match part number 5EA-11631-11-A0 to the Yamaha parts diagram for your model to confirm it is the component you need.

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Key Features & Benefits

• Replaces worn, scored, or damaged engine components.
• Installs in the position shown in the Yamaha engine parts diagram.
• Built to Yamaha's specification for its engine location.
• Size designation Std as listed by Yamaha; confirm the required size with service manual measurements.

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Frequently Asked Questions

Is 5EA-11631-11-A0 a genuine Yamaha part?

Yes. 5EA-11631-11-A0 is the Yamaha part number for the Piston (Std). This engine part is one of the internal components that keep the engine running as designed.

What does the Std size on part 5EA-11631-11-A0 mean?

STD indicates the standard-size version of part 5EA-11631-11-A0. Oversize or undersize versions are listed separately for use after machining or when wear calls for them; confirm the size you need using the Yamaha service manual.

Which Yamaha models use the Piston (Std), part 5EA-11631-11-A0?

Model and year fitment data is not listed for 5EA-11631-11-A0 on this page. Look up your model's Yamaha parts diagram and confirm that it lists part 5EA-11631-11-A0 before ordering.

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WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.